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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtOpenGL module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGLFRAMEBUFFEROBJECT_H
#define QGLFRAMEBUFFEROBJECT_H
#include <QtOpenGL/qgl.h>
#include <QtGui/qpaintdevice.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(OpenGL)
class QGLFramebufferObjectPrivate;
class QGLFramebufferObjectFormat;
class Q_OPENGL_EXPORT QGLFramebufferObject : public QPaintDevice
{
Q_DECLARE_PRIVATE(QGLFramebufferObject)
public:
enum Attachment {
NoAttachment,
CombinedDepthStencil,
Depth
};
QGLFramebufferObject(const QSize &size, GLenum target = GL_TEXTURE_2D);
QGLFramebufferObject(int width, int height, GLenum target = GL_TEXTURE_2D);
#if !defined(QT_OPENGL_ES) || defined(Q_QDOC)
QGLFramebufferObject(const QSize &size, Attachment attachment,
GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA8);
QGLFramebufferObject(int width, int height, Attachment attachment,
GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA8);
#else
QGLFramebufferObject(const QSize &size, Attachment attachment,
GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA);
QGLFramebufferObject(int width, int height, Attachment attachment,
GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA);
#endif
QGLFramebufferObject(const QSize &size, const QGLFramebufferObjectFormat &format);
QGLFramebufferObject(int width, int height, const QGLFramebufferObjectFormat &format);
#ifdef Q_MAC_COMPAT_GL_FUNCTIONS
QGLFramebufferObject(const QSize &size, QMacCompatGLenum target = GL_TEXTURE_2D);
QGLFramebufferObject(int width, int height, QMacCompatGLenum target = GL_TEXTURE_2D);
QGLFramebufferObject(const QSize &size, Attachment attachment,
QMacCompatGLenum target = GL_TEXTURE_2D, QMacCompatGLenum internal_format = GL_RGBA8);
QGLFramebufferObject(int width, int height, Attachment attachment,
QMacCompatGLenum target = GL_TEXTURE_2D, QMacCompatGLenum internal_format = GL_RGBA8);
#endif
virtual ~QGLFramebufferObject();
const QGLFramebufferObjectFormat &format() const;
bool isValid() const;
bool isBound() const;
bool bind();
bool release();
GLuint texture() const;
QSize size() const;
QImage toImage() const;
Attachment attachment() const;
QPaintEngine *paintEngine() const;
GLuint handle() const;
static bool hasOpenGLFramebufferObjects();
void drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
void drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
#ifdef Q_MAC_COMPAT_GL_FUNCTIONS
void drawTexture(const QRectF &target, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);
void drawTexture(const QPointF &point, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);
#endif
static bool hasOpenGLFramebufferBlit();
static void blitFramebuffer(QGLFramebufferObject *target, const QRect &targetRect,
QGLFramebufferObject *source, const QRect &sourceRect,
GLbitfield buffers = GL_COLOR_BUFFER_BIT,
GLenum filter = GL_NEAREST);
protected:
int metric(PaintDeviceMetric metric) const;
int devType() const { return QInternal::FramebufferObject; }
private:
Q_DISABLE_COPY(QGLFramebufferObject)
QScopedPointer<QGLFramebufferObjectPrivate> d_ptr;
friend class QGLDrawable;
};
class QGLFramebufferObjectFormatPrivate;
class Q_OPENGL_EXPORT QGLFramebufferObjectFormat
{
public:
#if !defined(QT_OPENGL_ES) || defined(Q_QDOC)
QGLFramebufferObjectFormat(int samples = 0,
QGLFramebufferObject::Attachment attachment = QGLFramebufferObject::NoAttachment,
GLenum target = GL_TEXTURE_2D,
GLenum internalFormat = GL_RGBA8);
#else
QGLFramebufferObjectFormat(int samples = 0,
QGLFramebufferObject::Attachment attachment = QGLFramebufferObject::NoAttachment,
GLenum target = GL_TEXTURE_2D,
GLenum internalFormat = GL_RGBA);
#endif
QGLFramebufferObjectFormat(const QGLFramebufferObjectFormat &other);
QGLFramebufferObjectFormat &operator=(const QGLFramebufferObjectFormat &other);
~QGLFramebufferObjectFormat();
void setSamples(int samples);
int samples() const;
void setAttachment(QGLFramebufferObject::Attachment attachment);
QGLFramebufferObject::Attachment attachment() const;
void setTextureTarget(GLenum target);
GLenum textureTarget() const;
void setInternalFormat(GLenum internalFormat);
GLenum internalFormat() const;
private:
QGLFramebufferObjectFormatPrivate *d;
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // QGLFRAMEBUFFEROBJECT_H
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